SOLUTION: Please help! Kelley has a total of $6 in dimes and quarters. If she has a total of 30 coins, how many quarters does she have? I have to do this in graphing form, thank you so mu

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Question 699451: Please help!
Kelley has a total of $6 in dimes and quarters. If she has a total of 30 coins, how many quarters does she have? I have to do this in graphing form, thank you so much!
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Kelley has a total of $6 in dimes and quarters. If she has a total of 30 coins, how many quarters does she have?
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Equations:
d + q = 30
10d+25q = 600
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Rearrange for graphing:
d = -q + 30
d = (-5/2)q + 60
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graph%28400%2C400%2C-10%2C50%2C-10%2C70%2C-x%2B30%2C+%28-5%2F2%29x%2B60%29
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Cheers,
Stan H.